Southwest Papua is the 38th province of Indonesia to be created, and was split off from West Papua on 8 December 2022. Despite being named southwest, it is a misnomer and this province is actually located in the northwest edge of Papua. The province comprises the Greater Sorong area which consists of Sorong City, Sorong Regency, South Sorong Regency, Maybrat Regency, Tambrauw Regency, and Raja Ampat Regency. The Bill (RUU) on the Establishment of the Southwest Papua Province was passed into law and therefore it became the 38th province in Indonesia.

West Papua, formerly Irian Jaya Barat, is an Indonesian province located in Indonesia Papua. It covers most of the two western peninsulas of the island of New Guinea, the eastern half of the Bird's Head Peninsula and the whole of the Bomberai Peninsula, along with nearby smaller islands. The province is bordered to the north by the Pacific Ocean, to the west by Southwest Papua Province, the Halmahera Sea and the Ceram Sea, to the south by the Banda Sea, and to the east by the province of Central Papua and the Cenderawasih Bay. Manokwari is the province's capital and largest city. With an estimated population of 569,570 in mid-2023, West Papua is the least populous province in Indonesia after South Papua, following the separation off in 2022 of the western half of the Bird's Head Peninsula to create the new province of Southwest Papua, containing 52% of what had been West Papua's population.